1、1.1.1. PPR 管道施工工藝 PPR pipe installation method1.1.1.1. 編制依據(jù) Basis of drawing up1.1給水排水管道工程施工及驗收規(guī)范GB50268-97 。Construction and acceptance norm of Water supply and drains piping engineering 1.2室內(nèi)管道支架及吊架 03S402 Piping support indoor1.1.1.2. 施工工藝： Construction technique:根據(jù)現(xiàn)場各種管線布置情況和流程順序確定工藝流程，本工程采用如下工藝

2、流程：施工準(zhǔn)備7 材料進(jìn)貨檢驗 7 PPR 管預(yù)制加工7支吊架制作安裝7PPR 管安裝 7PPR 管試驗According to the arrangement andflow order of fieldall kinds of pipelines, confirm theprocess flow. This engineeringadopts the following process flow: constructionpreparati on7 materialstockingtest 7PPR pipe pre - processing 7 manufacture andinstal

3、lation of support and hanger7 installation of PPR pipe7 PPR pipe test1) . 施工準(zhǔn)備： Construction preparation 施工工作及技術(shù)人員認(rèn)真熟悉原圖紙， 領(lǐng)會設(shè)計意圖， 對圖紙中和實際管道布置清楚后， 才 能施工。Construction work and technicians are strictly familiar with the original drawing, comprehend design purpose, and carry out the construction after

4、the clarity to drawing and actual pipeline arrangement.施工人員須熟悉 PPR 管的一般性能，掌握必須的操作要點。在各項預(yù)制加工項目開始前， 根據(jù)實際編制材料計劃，將需要的材料、設(shè)備等按規(guī)格、型號準(zhǔn)備好，運(yùn)至現(xiàn)場。Constructer must know well the general performance of PPR, master necessary operation points,Before each precast processing project, according to the plan of practica

5、l scheduling material, well prepare the needed material and equipment according to并附有產(chǎn)品說明specification and model and transport to the field.材料設(shè)備要求： 到現(xiàn)場的管材、 管件等提供的管材和管件應(yīng)符合設(shè)計規(guī)定， 書和質(zhì)量合格證書，須認(rèn)真檢查并經(jīng)業(yè)主驗明材質(zhì)，核對質(zhì)保書，規(guī)格、型號等，合格后方 能入庫，并分別作好標(biāo)識。Material equipment requirements: The offered field pipe and pipe fittin

6、gs should accordwith design prescription, adding with product stipulation and quality certification. Strictlyexamine and identify material by owner, check quality guarantee, specificationandmodels etc, warehouse after qualification, and mark separately.管材和管件的內(nèi)外壁應(yīng)光滑平整，無氣泡、裂紋、脫皮和明顯的痕紋、凹陷，色澤應(yīng)基本一致。不得使用有

7、損壞跡象的材料。如發(fā)現(xiàn)管道質(zhì)量有異常，應(yīng)在使用前進(jìn)行復(fù)檢。The internal and external surface of pipe and pipe fittings should be smooth andflat,without air bladder, crack, desquamate, obvious trace and hollow, and the color and lustershould be consistent. The material with damaged mark should be forbidden. Ifit isdiscovered that

8、 there is problem in the pipeline quality, recheck it before using.管材的端面應(yīng)垂直于管材的軸線。管件應(yīng)完整、無缺損、無變形。End face of pipe should be upright to the axes of pipe. The pipe fittings should be intact,without lack and distortion.管件和管材不應(yīng)長期置于陽光下照射， 為避免管子在儲運(yùn)時彎曲， 堆放應(yīng)平整。 搬運(yùn)管材和管件時，應(yīng)小心輕放，避免油污，嚴(yán)禁劇烈撞擊，與尖銳物觸碰和拋、摔、拖。管材開口處應(yīng)及

9、時封堵，以免管道堵塞造成不必要的浪費。Pipe fitting and pipe should not be placed in the sunshine for a long time to avoid the pipecurve in storage and transportation, and piling up them should be level. When conveyingpipe and pipe fittings, they should handled with care and avoid oil stain. Strong bump, cast,throw and

10、 draw is forbidden. Pipe hatch should be immediately plugged to avoid pipe jamand unnecessary waste.施工現(xiàn)場與材料存放處溫差較大時， 應(yīng)于安裝前將管件和管材在現(xiàn)場放置一定時間，使其溫度接近施工現(xiàn)場環(huán)境溫度。When there is large difference in construction field and storage temperature, should placepipe fitting and pipe at the field before installation fo

11、r certain time and make itstemperature closure to environment temperature of construction field.本項目 PPR 管道采用熱熔連接，施工前應(yīng)仔細(xì)檢查所使用的熱熔機(jī)具、割刀是否符合要求和正常使用，使用的電源及電線是否正常和安全。如下圖：This project pipe-PPR pipe adopts heat fusion. Before construction, should carefullyexamine whether the using hot melt equipment and cut

12、ter knife accord with requirementsand normal service, the using power supply and wire are normal and security. as thefollowi ng draw ings.卜材料進(jìn)貨檢驗：Material-stocki ng test為確保安裝質(zhì)量，材料進(jìn)貨時應(yīng)嚴(yán)格檢驗， 其管徑橢圓率應(yīng)v 10% ,管材同一截面的壁厚偏 差應(yīng)V 14%，內(nèi)外壁應(yīng)光滑、平整，無氣泡、裂口、裂紋、凹陷、脫皮和嚴(yán)重的冷斑及明顯 的痕跡。For in suri ng the in stallati on quali

13、ty, should strictly test the material when it is stocked. The elli pticity of pipe diameter should be less tha n 10%. The wall thick ness deviati on in the same pipe sect ion should be less tha n 14%. The internal and exter nal surface should be smooth, flat, without air bladder, crack, hollowing de

14、squamate, severe cold appearanee and obvious trace.2) . PPR 管道預(yù)制加工 :P recast pro cess ing of inner pipe PEpip eli nePE管連接：采用熱熔連接方式。熱熔連接最為可靠，操作方便，氣密性好，接口強(qiáng)度高。本方案中熱熔焊接為關(guān)鍵工序，具體方案如下:PPR pipe connection: ado pt hot melt connection method. Hot melt method is the most reliable, with convenient op erati on a

15、nd good air tight ness and high joint stre ngth. In thisproject, sweating soldering is the key working procedure; the detail project is as thefollowings.1) PPR 管道接觸式焊接安裝 PE pipe touch welding installation其施工方法及技術(shù)措施如下:Method of execution of works and actions to be taken管道連接采用熱熔焊接。熱熔焊接為關(guān)鍵工序，必須嚴(yán)格控制。The

16、 piping conjunctionadopts hot melt to weld. The hot melt weld is the key work , have to control strictly. 管道焊接主要程序: The piping welds main procedure:A :設(shè)置焊機(jī)的初始值（液壓值、溫度）Establish the initial value of the welding machine(the liquid presses value, temperature)液壓值的設(shè)置:The constitution of the liquid presse

17、s value管徑 DN100MM 以下，液壓值設(shè)定為 0.2 MPa;Diameter of pipe is DN100 MM the following, the liquid presses value to set for 0.2 MPa;管徑 DN100-350MM 時 ,液壓值設(shè)定為 0.4-0.5MPa;Diameter of pipe is DN100-DN350 MM, the liquid presses value to set for 0.4-0.5 MPa;溫度的設(shè)置 : The constitution of the temperature加熱板預(yù)熱時，溫度設(shè)定為2

18、10 C ;Heat plank prepare hot， the temperature sets to 210加熱焊口時，溫度設(shè)定為190-210 C .While heating the welding ， the temperature sets to 190-210B :固定焊管，保證待焊接的管及管件中心在一條直線上，錯口應(yīng)在2毫米以內(nèi);Fix the welding pipe， assurance treats to welding pipe and fittingcenter is 'onsa straightline， Distance of shunt should

19、at 2mm in;C:拋磨管端口，保證端口平整,再用醫(yī)用酒精清洗管端口，保證端口內(nèi)外壁的清潔；Throwtowhet pipe 's head， promise pipe's head neat， use again to cure to clean pipe' s head withthe alcohol， promise the inside and outside wall of pipe' s head to clean;D:室外溫度為20°C時加熱管及管件端口焊接參數(shù)如下表Outdoor temperature is at 20heatin

20、g pipe and tube port welding parameters following tableE:取出焊接好的管段，檢查焊口，焊口寬度、高度、形狀、均勻度等均符合焊接標(biāo)準(zhǔn)即為合格，方可安裝。 Take out to welding pipe， check the welding sew ， the welding sew width，height， shape， even degree.etc. all matching to weld standard is qualified， then be ableto in stall.t !1 r3) .官道試壓及沖洗 Pip el

21、i ne P ressure Test ing and Flush ing a).管道試壓：Pip eli ne Pressure Test ing管道安裝完畢，應(yīng)按設(shè)計規(guī)定對管道系統(tǒng)進(jìn)行強(qiáng)度、嚴(yán)密性等試驗，以檢查管道系統(tǒng)及各連should be taken strength testing andthe quality test of pipeline system and接部位的工程質(zhì)量。After installation,pipeline hermetic testing according to design as well as conn ecti ons.管道用水作介質(zhì)進(jìn)行強(qiáng)度及

22、嚴(yán)密性試驗； 應(yīng)按照設(shè)計的具體規(guī)定采用。 如設(shè)計無規(guī)定時， 工 作壓力不低于 0.07MPa 的管道一般采用水壓試驗， 工作壓力低于 0.07MPa 的管道一般采用 氣壓試驗。 Media of strength testing and hermetic testing is water and the water used for test should meet the relative standards. If no request in design, it usually goes like below: pipeline with work pressure more than

23、0.07MPa should be taken water pressure testing;pipeline with work pressure less than 0.07MPa should be taken air pressure test.1) 管道系統(tǒng)試驗前應(yīng)具備以下條件： Following conditions should be met before testing:Finish the pipeline systemA.管路系統(tǒng)施工安裝完畢，且符合設(shè)計和規(guī)范的要求。B. 全部支、吊架安裝完畢且合格。installation and meet the design and

24、 specification request.Supports installation should be finished andqualified.C.管道位置、標(biāo)高、坡度、坡向等經(jīng)復(fù)查合格；試驗用的臨時加固措施經(jīng)檢查確認(rèn)安全可 靠。 Pipeline 'psosition, elevation, gradient and slop direction should be qualified. The temporary facility used for test should be stable and safe.D.試驗用的壓力表經(jīng)校驗合格，并做好標(biāo)識；精度不低于1.5級，

25、表的滿刻度值為最大 被測壓力的 1.52 倍；試驗壓力表不少于 2塊。 Pressure meter used for test should be ok and marked with precision no less than 1.5-level. The full scale value should be 1.5-2 times as biggest tested-pressure.2）具體試驗方法宜采用分區(qū)、分層試壓和系統(tǒng)試壓相結(jié)合的方法。分區(qū)、分層試壓時，待系統(tǒng) 充滿水且放凈空氣后進(jìn)行加壓， 先把管網(wǎng)或管段的壓力升至試驗壓力， 穩(wěn)壓 10 分鐘，壓力不得 下降，再將壓力降至工作壓

26、力， 在 60 分鐘內(nèi)壓力不得下降、 外觀檢查無滲漏為合格。 系統(tǒng)試壓 時以最低點壓力為準(zhǔn)，壓力升至試驗壓力后，穩(wěn)壓 10 分鐘，壓力下降不得大于 20Kpa ，再將 系統(tǒng)壓力降至工作壓力，外觀檢查無滲漏為合格。通知有關(guān)人員驗收、辦理交接手續(xù)，然后把 水泄凈、拆除試壓泵和水源。 The test method is to be chosen the combination of subarea test and delamination test. When doing test, add pressure after pipe is full of water and without air

27、 in. First increase the pressure of pipeline net or pipe section to tested pressure and keep it for 10min with no descending of work pressure. Then lower the pressure to work pressure for 60min to check if there are any leakages. No leakages are qualified. When doing test for pipeline system, first

28、increase the pressure from the lowest to tested-pressure and keep it for 10min with pressure decline less than 20Kpa. Then lower the system pressure to workpressure to check if there are any leakages. No leakages are qualified. Finally notice relative personnel for check and discharge the water in p

29、ipe and remove the pressure-testing pump and shut off water supply.3) 試驗時不得敲擊管道。Don' t beat the pipe when testing.4）試壓完畢后，恢復(fù)原有的設(shè)備、表計，并拆除隔斷用盲板，試驗后填寫試壓記錄并作好驗 收簽證。 Recover the equipment and meter and remove the blind plate for partition after test. Then fill the test record.b). 管道沖洗 Pipeline blowin

30、g and flushing 管道水系統(tǒng)沖洗： Pipeline Flushing of Water Pipe System: 1）調(diào)試、運(yùn)行前必須進(jìn)行系統(tǒng)的沖洗：水系統(tǒng)主、干管必須開式進(jìn)行沖洗排污，反復(fù)多次直 至確認(rèn)清潔，然后才允許轉(zhuǎn)入封閉式循環(huán)過濾（管網(wǎng)、機(jī)組、設(shè)備整體進(jìn)行），反復(fù)清理過 濾器，直至y整個系統(tǒng)干凈、 清潔。It must do flushing after test and commissioning: main pipe and branches should be down flushing repeatedly and then it may be in closed circling filtration (include pipeline net, units, equipment). Clean the filter again and again until the system is clean.2）管道系統(tǒng)在清洗前必須把設(shè)備與系統(tǒng)分離開（即關(guān)閉設(shè)備進(jìn)出口閥門），開啟旁通閥（可 以臨時設(shè)置）， 向管網(wǎng)最高點灌水， 直至系統(tǒng)灌滿水為止；接著從系統(tǒng)的最低點處把臟水放 出，按上述方法反復(fù)多次， 直至系統(tǒng)無臟物； 然后啟動冷